Yes!!! I see what you're doing with the cowl. That's a great idea. So it looks like you used the provided motor box but cut it down to get the correct stand-off.
I'm building this with no instructions so your pictures and info is a great help to me. Don't worry about the language thing either. Your English is way better than my Czech.
Any chance of you taking a picture with the cowl on? I'm a little confused because it looks like there will be open vents between the fuse and cowl. I'm guessing that's where those goofy exhaust stacks they give you go.
You've got some great looking planes in your shop. Looks like a Stuka and ME 109 on the wing rack.